公开(公告)号：US20190284344A1

公开(公告)日：2019-09-19

申请号：US16463697

申请日：2017-11-23

Applicant: XIAMEN UNIVERSITY

Inventor： Lizong DAI ,  Ting CHEN ,  Cheng LIU ,  Shicheng WANG ,  Guorong CEHN ,  Conghui YUAN ,  Yiting XU ,  Birong ZENG ,  Wei'ang LUO ,  Kaibin HE

IPC: C08G77/46 ,  C07F9/09 ,  C08G77/395 ,  C08G59/40 ,  C08G59/24 ,  C08G59/50 ,  C08G59/56

Abstract: Disclosed are a fluorine-silicon-containing polyphosphate ester and method for preparation thereof, having a chemical structural formula of: wherein R 1 is R 2 is n=10˜100. The fluorine-silicon-containing polyphosphate ester of the present invention uses silicon phosphorus and fluorine for improving flame retardancy. Phosphorus catalyzes the system to form a phosphorus-rich carbon layer, performing a protective-layer function and thereby preventing further breakdown of the epoxy resin. The silicon-containing epoxy resin forms a silica-containing carbon layer during the process of combustion, strengthening the carbon-layer structure and further improving the protective function of the carbon-layer. The introduction of elemental fluorine improves the thermal stability of the epoxy resin, thereby improving the flame retardancy performance of the system.

公开(公告)号：US20190276599A1

公开(公告)日：2019-09-12

申请号：US16463716

申请日：2017-11-23

Applicant: XIAMEN UNIVERSITY

Inventor： Lizong DAI ,  Ting CHEN ,  Cheng LIU ,  Shicheng WANG ,  Guorong CEHN ,  Conghui YUAN ,  Yiting XU ,  Birong ZENG ,  Wei'ang LUO

IPC: C08G65/26 ,  C08L63/00 ,  C08G59/22 ,  C08G59/50 ,  C08G59/24 ,  B29C39/00 ,  B29C39/38

Abstract: Disclosed are a preparation method of a phosphorus-nitrogen-silicon-containing polymeric flame retardant and application thereof. The chemical structure of the polymeric flame retardant is wherein m=10˜100, n=10˜100. The synergistic flame-retardant effect between the phosphorus, nitrogen, and silicon in the phosphorus-nitrogen-silicon-containing polymeric flame retardant increases the flame retardancy of epoxy resin.